package 删除数据;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;

public class Demo01 {
    public static void main(String[] args) {
        String url = "jdbc:mysql://localhost:3306/db_jdbc_demo" +
                "?characterEncoding=utf8&useSSL=false&serverTimezone=UTC";
        String user = "root";
        String pass = "xiaotong123";
        Connection conn = null;
        PreparedStatement pstmt = null;
        try {
            Class.forName("com.mysql.jdbc.Driver");
            conn = DriverManager.getConnection(url,user,pass);
            String sql = "DELETE FROM t_account WHERE id =?";
            pstmt = conn.prepareStatement(sql);
            pstmt.setInt(1,2);
            int i =  pstmt.executeUpdate();
            if (i==1){
                System.out.println("删除成功！");
            }else {
                System.out.println("删除失败！");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }finally {
            try {
                pstmt.close();
                conn.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
}
